Knuckle opening bush necking tool

Abstract

The utility model provides a knuckle opening lining necking tool, which is used for installing a lining in a lining hole of a knuckle, and is characterized in that the lining hole is sleeved on a positioning mandrel, a necking ring is sleeved on the positioning mandrel above the lining hole, the positioning mandrel is installed in a support sleeve, and the support sleeve is sleeved on the lining hole. The positioning mandrel is in sliding connection with the supporting sleeve, a positioning pin is coaxially installed on the positioning mandrel, the lining is arranged on the positioning pin in a sleeving mode, a pressing head is arranged above the lining, and the pressing head is used for installing the lining into the lining hole after the lining is necked down through the necking ring. By means of the device, the integrated operation of necking and bush installation is achieved, the efficiency of knuckle bush assembly is greatly improved, the bush assembly speed is increased, the workload of workers is relieved, meanwhile, the necking bush is better matched with a bush hole of a knuckle, the qualified rate of products is increased, and potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, especially to a knuckle opening bushing necking tool. BACKGROUND

[0002] The knuckle is one of the main parts of the automobile steering axle, can make the automobile steady travel and sensitive transmission travel direction, the function of the knuckle is to bear the load of the front part of the automobile, supports and drives the front wheel to rotate around the main pin and makes the automobile turn. Under the automobile travel state, it bears the variable impact load, therefore, requires that it has very high strength. The knuckle bushing is the key part of guaranteeing the stability of automobile control, the smoothness of travel, the comfort, the safety and making the automobile correct and accurate travel.

[0003] At present, the knuckle bushing often adopts the open C-shaped outer tube structure in order to realize better performance, which also leads to the bushing needing to experience a necking process before assembly.

[0004] The existing knuckle bushing necking mode is that the worker first performs the necking operation on the bushing, and then assembles the necked bushing into the bushing hole of the knuckle. Such operation is prone to cause the bushing and the knuckle bushing hole to be not adapted, reduces the qualified rate of the product, increases the safety hidden danger, also increases the workload of the worker, reduces the assembly speed and affects the efficiency of the knuckle bushing assembly. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the technical insufficiency, provides a knuckle opening bushing necking tool.

[0006] Therefore, the utility model provides a knuckle opening bushing necking tool, installs the bushing in the bushing hole of the knuckle, characterized in that the bushing hole is sleeved on the positioning core shaft, the positioning core shaft is also sleeved with the necking ring above the bushing hole, the positioning core shaft is installed in the supporting sleeve, the positioning core shaft is slidably connected with the supporting sleeve, the positioning core shaft is coaxially installed with the positioning pin, the bushing is sleeved on the positioning pin, the upper portion of the bushing is provided with the pressure head, and the pressure head is used to assemble the bushing into the bushing hole after the bushing is necked through the necking ring.

[0007] Preferably, the bottom of the positioning core shaft and the bottom of the supporting sleeve are fixedly installed with the spring.

[0008] Preferably, the side surface of the supporting sleeve is provided with the vertical long slot, the positioning core shaft is fixedly installed with the guide rod, and the guide rod passes through the long slot and slides along the long slot.

[0009] Preferably, the diameter of the top opening of the necking ring is greater than the diameter of the bottom opening of the necking ring.

[0010] Preferably, the pressure head is provided with a through hole for the positioning pin to pass through.

[0011] Preferably, the support sleeve is fixedly installed on the bottom plate, and the bottom plate is fixedly connected with the working panel of the press.

[0012] The steering knuckle opening bushing necking tool has the following beneficial effects.

[0013] (1) The bottom plate is fixedly installed on the working panel of the press, and then the bushing hole on the steering knuckle is aligned with the positioning mandrel for installation, and then the necking ring is installed above the bushing hole, and then the open bushing is installed on the positioning pin, at this time, the bushing, the necking ring and the bushing hole are coaxially arranged, the press is started, the press drives the pressure head to press the bushing into the necking ring for necking operation, and then the necked bushing is installed into the bushing hole of the steering knuckle, realizing integrated operation of necking and bushing installation, greatly improving the efficiency of steering knuckle bushing assembly, improving the speed of bushing assembly, reducing the workload of workers, and also making the necked bushing and the bushing hole of the steering knuckle more matched, improving the qualified rate of products and reducing safety hazards.

[0014] (2) When the pressure head drives the bushing to press down, the positioning mandrel will move along the support sleeve, at this time, the guide rod on the positioning mandrel also slides along the long slot, and the positioning mandrel is well guided and positioned, preventing the positioning mandrel from rotating during movement and affecting the normal operation of the bushing necking work.

[0015] (3) The positioning mandrel exerts a downward pressure on the spring during the pressing process, and when the bushing installation is completed, the pressure on the bushing disappears, at this time, the spring can exert an upward thrust on the positioning mandrel, facilitating the rapid resetting of the positioning mandrel and preparing for the necking installation of the next steering knuckle bushing.

[0016] (4) The pressure head is provided with a through hole coaxial with the positioning pin, which not only facilitates the smooth pressing of the pressure head and ensures the smooth operation of the steering knuckle bushing necking installation work, but also plays a good guiding role on the pressure head, preventing the pressure head from being pressed off-center. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structure schematic view of the steering knuckle opening bushing necking tool in the embodiment;

[0018] Figure 2 is a side structure schematic view of the steering knuckle opening bushing necking tool in the embodiment;

[0019] Figure 3 is Figure 2 a sectional view in A-A direction in the embodiment.

[0020] Figure 4 2 is a schematic structural diagram of the steering knuckle in this embodiment.

[0021] Markings in the figure: 1. Bushing; 2. Steering knuckle; 3. Bushing hole; 4. Positioning core shaft; 5. Neck ring; 6. Support sleeve; 7. Positioning pin; 8. Pressure head; 9. Spring; 10. Long groove; 11. Guide rod; 12. Through hole; 13. Base plate. DETAILED DESCRIPTION

[0022] The present invention is further described below with reference to the accompanying drawings and specific embodiments to facilitate understanding of the present invention. The methods used in the present invention are conventional methods unless otherwise specified; the raw materials and devices used are conventional commercially available products unless otherwise specified.

[0023] Example:

[0024] like Figures 1-4 As shown, the utility model provides a steering knuckle open bushing necking tool, which installs the bushing 1 in the bushing hole 3 of the steering knuckle 2, and the bushing hole 3 is sleeved on the positioning core shaft 4. The positioning core shaft 4 above the bushing hole 3 is also sleeved with a necking ring 5, and the positioning core shaft 4 is installed in a supporting sleeve 6. The positioning core shaft 4 is slidably connected to the supporting sleeve 6, and a positioning pin 7 is coaxially installed on the positioning core shaft 4. The bushing 1 is sleeved on the positioning pin 7, and a pressure head 8 is provided above the bushing 1. The pressure head 8 is used to install the bushing 1 into the bushing hole 3 after being necked by the necking ring 5.

[0025] Furthermore, a spring 9 is fixedly installed between the bottom of the positioning core shaft 4 and the bottom of the supporting sleeve 6. The spring 9 can quickly reset the compressed positioning core shaft 4 to facilitate the normal necking assembly of the next steering knuckle bushing.

[0026] Furthermore, a vertical long groove 10 is opened on the side of the support sleeve 6, and a guide rod 11 is fixedly installed on the positioning core shaft 4. The guide rod 11 passes through the long groove 10 and slides along the long groove 10, which can prevent the positioning core shaft 4 from rotating during the process of sliding up and down along the support sleeve 6, affecting the normal necking work.

[0027] Furthermore, the diameter of the top opening of the neck ring 5 is larger than the diameter of the bottom opening. The diameter of the bushing 1 before necking is smaller than the top diameter of the neck ring 5, but larger than the bottom diameter of the neck ring 5. The bushing 1 first passes smoothly over the top of the neck ring 5, and after being necked by the neck ring 5, the necked bushing 1 passes through the bottom of the neck ring 5 and is pressed into the bushing hole 3. This necking method is simple and highly practical.

[0028] Further, the pressing head 8 is provided with a through hole 12 for the positioning pin 7 to pass through, which not only facilitates the smooth pressing of the pressing head 8 and ensures the smooth installation of the knuckle bush necking, but also plays a good guiding role for the pressing head 8 to prevent the pressing head 8 from being pressed off-center.

[0029] Further, the support sleeve 6 is fixedly installed on the bottom plate 13, and the bottom plate 13 is fixedly connected with the working panel of the pressing machine.

[0030] The working principle of the embodiment is as follows:

[0031] First, the bottom plate 13 is fixedly installed on the working panel of the pressing machine, and then the bush hole 3 on the knuckle 2 is aligned with the positioning mandrel 4 for installation, and then the necking ring 5 is installed above the bush hole 3, and then the open bush 1 is installed on the positioning pin 7, at this time, the bush 1, the necking ring 5 and the bush hole 3 are coaxially arranged, the pressing machine is started, and the pressing head 8 is driven downward to press the bush 1 into the necking ring 5 in sequence for necking operation, and then the necked bush 1 is installed into the bush hole 3 of the knuckle 2, realizing the integrated operation of necking and bush installation.

[0032] When the bush 1 of the knuckle 2 is installed, the necking ring 5 is removed, and the installed knuckle 2 is removed, at this time, the positioning mandrel 4 has been quickly reset under the action of the spring 9, and the above operation can be repeated to install the bush necking of the next knuckle 2.

[0033] In the description of the utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the utility model.

[0034] The above is only a specific embodiment of the utility model, and cannot limit the scope of the utility model, so the replacement of equivalent components or equivalent changes and modifications made within the scope of the utility model patent protection range shall still belong to the scope covered by the claims of the utility model.

Claims

1. A knuckle opening bush necking tool for installing a bush (1) in a bush hole (3) of a knuckle (2), characterized in that, The bushing hole (3) is sleeved on the positioning mandrel (4), a necking ring (5) is further sleeved on the positioning mandrel (4) above the bushing hole (3), the positioning mandrel (4) is installed in a supporting sleeve (6), the positioning mandrel (4) is in sliding connection with the supporting sleeve (6), a positioning pin (7) is coaxially installed on the positioning mandrel (4), the bushing (1) is sleeved on the positioning pin (7), a pressure head (8) is arranged above the bushing (1), and the pressure head (8) is used for loading the bushing (1) into the bushing hole (3) after the bushing (1) is necked through the necking ring (5).

2. The knuckle opening bushing necking tool of claim 1, wherein, A spring (9) is fixedly installed between the bottom of the positioning mandrel (4) and the bottom of the supporting sleeve (6).

3. The knuckle opening bushing necking tool of claim 2, wherein, A vertical long slot (10) is formed in the side of the supporting sleeve (6), a guide rod (11) is fixedly installed on the positioning mandrel (4), and the guide rod (11) penetrates through and slides along the long slot (10).

4. The knuckle opening bushing necking tool of claim 1, wherein, The diameter of the hole in the top of the necking ring (5) is greater than the diameter of the hole in the bottom of the necking ring (5).

5. The knuckle opening bushing necking tool of claim 1, wherein, A through hole (12) is formed in the pressure head (8) to facilitate the positioning pin (7) to penetrate through.

6. The knuckle opening bushing necking tool of claim 1, wherein, The supporting sleeve (6) is fixedly installed on a bottom plate (13), and the bottom plate (13) is fixedly connected with a working panel of a press.

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